Open AccessNumerical Study on Behaviour of Spiral Concrete Columns and Slender Concrete Filled Steel Tube (CFST) Columns against Concentric Axial Loads
Author(s) -
Usman Wijaya,
William Sanjaya
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1764/1/012147
Subject(s) - structural engineering , buckling , concentric , column (typography) , finite element method , spiral (railway) , tube (container) , critical load , bending , materials science , engineering , composite material , mathematics , geometry , mechanical engineering , connection (principal bundle)
Concrete columns with a circular cross-section have been used since a long time ago due to its better performance and advantages in many ways. The value of axial force in circular column is greater than in square column under the equivalent condition. To date, there has been no study that compares CFST behaviour with spiral concrete columns. This study can fill the gaps in comparative studies in between performance of the two types of columns with axial loading on slenderness variations using finite element modelling. Based on the results of the finite element modelling, with the same material capacity the CFST column has a greater resistance to geometric or bending failure with 8.63% than the spiral concrete column. The CFST column has a larger Critical Buckling Load than the spiral. And in general, with the greater the value of L/D or the slenderer the column is designed, the value of the Critical Buckling Load will tend to decrease and this occurs in both types of columns.